[LEAPSECS] Leap Second Announced by IERS (fwd)

[Richard B. Langley]

---------- Forwarded message ----------
Date: Fri, 4 Jul 2008 09:25:03 -0300
From: Richard B. Langley <lang at unb.ca>
Reply-To: Canadian Space Geodesy Forum <CANSPACE at listserv.unb.ca>,
     Richard B. Langley <lang at unb.ca>
To: CANSPACE at listserv.unb.ca
Subject: Leap Second Announced by IERS

[[The integer second offset between GPS System Time and UTC will increase to
15 seconds after the leap second insertion. More info on leap seconds here:
<http://tycho.usno.navy.mil/leapsec.html>. -- RBL]]

     INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)

SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE

SERVICE DE LA ROTATION TERRESTRE
OBSERVATOIRE DE PARIS
61, Av. de l'Observatoire 75014 PARIS (France)
Tel.      : 33 (0) 1 40 51 22 26
FAX       : 33 (0) 1 40 51 22 91
e-mail    : services.iers at obspm.fr
http://hpiers.obspm.fr/eop-pc

                                              Paris, 4 July 2008

                                              Bulletin C 36

                                              To authorities responsible
					      for the measurement and
					      distribution of time


                                   UTC TIME STEP
                            on the 1st of January 2009


 A positive leap second will be introduced at the end of December 2008.
 The sequence of dates of the UTC second markers will be:

                          2008 December 31,     23h 59m 59s
                          2008 December 31,     23h 59m 60s
                          2009 January   1,      0h  0m  0s

 The difference between UTC and the International Atomic Time TAI is:

  from 2006 January 1, 0h UTC, to 2009 January 1  0h UTC  : UTC-TAI = - 33s
  from 2009 January 1, 0h UTC, until further notice       : UTC-TAI = - 34s

 Leap seconds can be introduced in UTC at the end of the months of December
 or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
 six months, either to announce a time step in UTC or to confirm that there
 will be no time step at the next possible date.



                                              Daniel GAMBIS
                                              Head
                                              Earth Orientation Center of IERS
					      Observatoire de Paris, France

===============================================================================
 Richard B. Langley                            E-mail: lang at unb.ca
 Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/
 Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142
 University of New Brunswick                   Fax:      +1 506 453-4943
 Fredericton, N.B., Canada  E3B 5A3
     Fredericton?  Where's that?  See: http://www.city.fredericton.nb.ca/
===============================================================================

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